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Full Discussion: Hang a Process
Operating Systems Linux SuSE Hang a Process Post 52911 by laila63 on Tuesday 29th of June 2004 02:19:57 PM
Old 06-29-2004
"hanging" is a process that is still running, but wouldn't accept any signal and still consuming resources. I know this may be caused by the parent process not waiting for the child process to send its info before the parent is shutting down. But that is usually is caused by accident. I want to write a program/script that would intentionally cause a specified process to hang.

thank you much for your reply!
 

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EXIT(2) 							System Calls Manual							   EXIT(2)

NAME
_exit - terminate a process SYNOPSIS
_exit(status) int status; DESCRIPTION
_exit terminates a process with the following consequences: All of the descriptors open in the calling process are closed. This may entail delays, for example, waiting for output to drain; a process in this state may not be killed, as it is already dying. If the parent process of the calling process is executing a wait or is interested in the SIGCHLD signal, then it is notified of the calling process's termination and the low-order eight bits of status are made available to it; see wait(2). The parent process ID of all of the calling process's existing child processes are also set to 1. This means that the initialization process (see intro(2)) inherits each of these processes as well. Any stopped children are restarted with a hangup signal (SIGHUP). Most C programs call the library routine exit(3), which performs cleanup actions in the standard I/O library before calling _exit. RETURN VALUE
This call never returns. SEE ALSO
fork(2), sigvec(2), wait(2), exit(3) 4th Berkeley Distribution May 22, 1986 EXIT(2)
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